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FSD to BFI: distance & flight time
Sioux Falls (Joe Foss Field Airport) → Seattle (Boeing Field King County International Airport)
1,260 mi
2,028 km · 1,095 nm
3h 12m
estimated nonstop flight time
-2h
time difference · heading west
See live FSD→BFI fares Phone-only fares on this route — call free
Flight time details
1,260 miles nonstop takes roughly 3h 12m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- FSD — Joe Foss Field Airport · Sioux Falls, United States
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is FSD from BFI?
The flight distance from Sioux Falls (FSD) to Seattle (BFI) is 1,260 miles (2,028 km, 1,095 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSD to BFI?
A nonstop flight takes about 3h 12m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Sioux Falls and Seattle?
Seattle is 2 hours behind Sioux Falls.
What is the cheapest way to fly from FSD to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSD–BFI that never appear on search engines, with no booking fees.